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| author |   Jens Axboe <axboe@kernel.dk> | 2021-03-25 18:42:50 -0600 |
|---|---|---|
| committer |   Casey Schaufler <casey@schaufler-ca.com> | 2021-05-18 10:36:48 -0700 |
| commit | 0169d8f33ab7a58675a94c18122dba58d8f6a1b8 (patch) | |
| tree | 3bef954d23fe126a5072fd085e3aebcfa69dbfbf /security | |
| parent | smackfs: restrict bytes count in smk_set_cipso() (diff) | |
| download | linux-dev-0169d8f33ab7a58675a94c18122dba58d8f6a1b8.tar.xz linux-dev-0169d8f33ab7a58675a94c18122dba58d8f6a1b8.zip | |
Revert "Smack: Handle io_uring kernel thread privileges"
This reverts commit 942cb357ae7d9249088e3687ee6a00ed2745a0c7.
The io_uring PF_IO_WORKER threads no longer have PF_KTHREAD set, so no
need to special case them for credential checks.
Cc: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Diffstat (limited to 'security')
| -rw-r--r-- | security/smack/smack_access.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c index 7eabb448acab..efe2406a3960 100644 --- a/security/smack/smack_access.c +++ b/security/smack/smack_access.c @@ -688,10 +688,9 @@ bool smack_privileged_cred(int cap, const struct cred *cred) bool smack_privileged(int cap) { /* - * Kernel threads may not have credentials we can use. - * The io_uring kernel threads do have reliable credentials. + * All kernel tasks are privileged */ - if ((current->flags & (PF_KTHREAD | PF_IO_WORKER)) == PF_KTHREAD) + if (unlikely(current->flags & PF_KTHREAD)) return true; return smack_privileged_cred(cap, current_cred()); |